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| 偏振模色散自适应补偿系统对调制码型的适应性分析 | |
| 引用本文： | 王少康,席丽霞,方光青,赵鑫媛,张晓光.偏振模色散自适应补偿系统对调制码型的适应性分析[J].光学学报,2008,28(s2):201-204. |
| 作者姓名： | 王少康 席丽霞 方光青 赵鑫媛 张晓光 |
| 作者单位： | 王少康:北京邮电大学理学院光通信与光波技术教育部重点实验室 北京 100876 席丽霞:北京邮电大学理学院光通信与光波技术教育部重点实验室 北京 100876 方光青:北京邮电大学理学院光通信与光波技术教育部重点实验室 北京 100876 赵鑫媛:北京邮电大学理学院光通信与光波技术教育部重点实验室 北京 100876 张晓光:北京邮电大学理学院光通信与光波技术教育部重点实验室 北京 100876 |
| 基金项目： | 北京市共建基金(XK100130737)资助项目。 |
| 摘 要： | 偏振模色散(PMD)的自适应补偿已经得到了比较深入的研究。在实验中采用偏振度作为取样反馈信号, 粒子群优化算法(PSO)作为反馈控制算法, 比较了偏振模色散自适应补偿系统对于不同码型的补偿效果。结果表明, 传输信号质量严重恶化的情况下, 补偿之后, 对于不同的传输码型, 接收信号的误码率都可以达到一般光纤通信系统的基本要求(10-9), 说明了PMD自适应补偿系统对于各种调制码型都具有良好的补偿效果, 还可以看出, NRZ码相对于其他码型有较高的功率代价, 而RZ50码型在补偿系统中的接收性能最佳。 |
| 关 键 词： | 光纤通信 PMD自适应补偿 调制码型 适应性 功率代价 |
Analysis on the Adaptability of Polarization Mode Dispersion Adaptive Compensation System on Different Modulation Formats |
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| Abstract: | The adaptive compensation method of polarization mode compensation (PMD) has been studied in depth. Degree of polarization was sampled as the feedback signal and particle swarm optimization (PSO) algorithm was applied as the feedback control method in the adaptive compensation system. The effect of the compensation system upon signals of different modulation formats was examined and carried into comparison experimentally. The quality of the transmission signal being severely deteriorated, signals of different modulation formats were compensated productively with bit error ratio (BER) improved enough to satisfy the demand of optical communication systems (10-9). Thus the insensibility of the productiveness of PMD adaptive compensation system towards signals of different modulation formats was experimentally proved. Besides, the NRZ possess a certain power penalty over each other modulation format, while the receiving performance of signal of RZ50 was the best. |
| Keywords: | optical fiber communication PMD adaptive compensation modulation format adaptability power penalty |